Folcloredesmus thomasi, Bouzan & Iniesta & Brescovit, 2021

Bouzan, Rodrigo Salvador, Iniesta, Luiz Felipe M. & Brescovit, Antonio Domingos, 2021, Cladistic analysis and taxonomic review of the millipede tribe Arthrosolaenomeridini Hoffman, 1976 (Polydesmida: Chelodesmidae), Zootaxa 4970 (2), pp. 201-256 : 246-247

Folcloredesmus thomasi n. sp.

Figures 26 , 27C–D , 28

urn:lsid:zoobank.org:act:26862968-716B-47D3-9090-416B8C209ABA

Type material. Male holotype from Fazenda São Nicolau (09° 50’ 25”S, 58° 14’ 53”W), Cotriguaçu, Mato Grosso, Brazil, 02.XI.2014, M. Karam-Gemael coll., deposited in IBSP 7788 . Paratypes: four males and two females from Fazenda São Nicolau , Cotriguaçu, Mato Grosso, Brazil, 11.XII.2009, L. D. Batirola coll., deposited in IBSP 5452 and IBSP 5453 .

Additional material. BRAZIL: Mato Grosso: Cotriguaçu, Fazenda São Nicolau (09° 50’ 25”S, 58° 14’ 53”W), 2♂, X.2017 ( CZUFMT 849 ); Cotriguaçu, Fazenda São Nicolau (09° 50’ 25”S, 58° 14’ 53”W), 10♂, 02.XI.2014, M. Karam-Gemael coll. ( CZUFMT 833 ) .

Diagnosis. The same characteristics of the genus.

Description. Male (Holotype, IBSP 7788). Coloration (long-preserved in 70% ethanol): Head and antennae ochre with the seventh antennomere broken. Body ocher with the edges of the paranota whitish ( Fig. 26A–C ), however in recently collected specimens the body’s coloration is reddish brown with the edge of the paranota yellowish ( Figs 1A–B ). Legs ochre whitish. Telson ocher. Total length: 55.69. Total width: 7.46. Collum 2.66 length, 7.65 width. Antennomere lengths (1>7): 0.62; 1.62; 1.49; 1.54; 1.55; 1.64; 0.26. Podomeres lengths (1>7): 0.99; 1.42; 2.33; 1.29; 1.52; 1.85; 0.47. Gonopod aperture 1.54 length, 3.01 width. Telson 1.20 length. Gonopod: 2.37 length, 2.37 width. Gonocoxae: 1.13 length, 1.26 width. A small spiniform process present ( Fig. 26D ). Telopodite: 2.30 length, 0.87 width. Prefemoral region 1/3 the size of telopodite. Prefemoral process ( Figs 26D–F ) long, narrow and falciform, starting from an angle of 135°, ascending parallel to the solenomere and partially covering it in ventral view; in ectal view, with indentations in the apical portion. Cingulum medially positioned ( Fig. 26F ). Solenomere long and thin with apex acute and slightly curved ( Fig. 26F ).

Female (Paratype, IBSP 5453). Body as in male. Total length: 67.74. Total width: 8.90. Collum 3.40 length, 8.27 width. Epigyne short and triangular with irregular edges. Vulvae ( Figs 27C–D ): 1.21 length, 0.75 width. External valve: 0.89 length, 0.40 width. Internal valve: 0.88 length, 0.37 width. Operculum: 0.30 length, 0.35 width.

Distribution. Known only from the type locality ( Fig. 28 ).

Etymology. The species epithet is taken as a noun in apposition honoring a very important person in the life of the first author, who has a passion for stories of Brazilian folklore. Noun in apposition.

Figures

FIGURE 1. (A–B) Live male specimen of Folcloredesmus thomasi n. sp., from Fazenda São Nicolau, Cotriguaçu, Mato Grosso, Brazil. Photo by: Domingos de Jesus Rodrigues.

FIGURE 26. Folcloredesmus thomasi n. sp. (holotype, IBSP 5452), dorsal views of anterior (A), midbody (B) and posterior (C) body rings. Scale bars: 2 mm. Left gonopod. (D), mesal view; (E), ventral view; (F), ectal view. Scale bars: 1 mm.Abbreviations: C, cingulum; PfP, prefemoral process; S, solenomere.

FIGURE 27. Left vulva. Abiliodesmus mapinguari n. sp. (paratype, CZUFMT 834): (A), ventral view; (B), lateral view. Folcloredesmus thomasi n. sp. (paratype, IBSP 5453): (C), ventral view; (D), lateral view. Scale bars: 0,5 mm. Abbreviations: EV, external valve; IV, internal valve; Op, operculum.

FIGURE 28. Distribution map of Angelodesmus Schubart, 1962 and Folcloredesmus n. gen. species.